Questions tagged [layer1]
For questions about the OSI layer-1 (physical layer).
2 questions with no upvoted or accepted answers
Regarding Physical Connectivity
I have questions regarding the following designs in my test lab: 1.Ethernet port of one switch is connected to TenGig port of the Firewall.Why would anyone do this(connecting Ethernet and Tengigabit ...
What are the differences between the Optical Carrier (OC) and Synchronous Transport Mode (STM) protocols, in regards to SONET/SDH?
I understand that OC-3c and STM-1 are technically consistent, and STM-1 can transport different quantities of CEPT-N signals, but why not just use OC-3c and forget STM altogether? Edit: Originally ...